Using steganography, the practice of hiding information in other information, encryption experts can conceal extensive messages in only a paragraph of ordinary text.
Translation and Meaning:
Using (sth)....Noun clause modifies the noun
steganography ..... subject (
encryption experts)
can conceal (the object of the sentence:
extensive messages)
in (
only a paragraph of ordinary text)
The meaning of the sentence is that encryption experts can conceal an extensive message in only a paragraph of ordinary text. They do this encryption using a practice which is called steganography, in which information is hidden in other information.
A. Using steganography, the practice of hiding information in other information, encryption experts can conceal extensive messages in only a paragraph of ordinary text.
No errorB. Using the practice of hiding information in other
information, which is called steganography, extensive messages can be concealed in only a paragraph of ordinary text by encryption experts.
(modifier error)
C. Extensive messages can be concealed by encryption experts who use
steganography, the practice of hiding information in other information,
in only a paragraph of ordinary text.
(meaning issue, modifier error)D.
Concealed in only a paragraph of ordinary text, encryption experts can use the practice of hiding information in other
information, which is called steganography, for extensive messages.
(Modifier errors leading to illogical meaning)E. The concealing of extensive messages in only a paragraph of ordinary text using steganography, which is the practice of hiding information in other information, is possible by encryption experts.
(absence of a verb)a noun phrase...an adjective clause ... is possible by encryption experts is
not logically as well as grammatically correct.